Skip to content
Molekula

Molekula

Triphenylphosphonium bromide

SKU 20107888 CAS 6399-81-1 C18H16BrP MW 343.20 Available on enquiry

Supplying 4,500+ customers in over 80 countries

ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch

Triphenylphosphonium bromide is a phosphonium salt used in organic synthesis, particularly in the preparation of phosphine ligands and as a mild Brønsted acid catalyst. It appears as a white to off-white crystalline powder. CAS: 6399-81-1, Molecular Formula: C18H16BrP, Molecular Weight: 343.20 g/mol, Storage: Ambient. Molekula supplies Triphenylphosphonium bromide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

Contact sales
Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Overview

SKU
20107888
CAS Number
6399-81-1
IUPAC Name
triphenylphosphane;hydrobromide
EC Number
229-012-6
Molecular Formula
C18H16BrP
Molecular Weight
343.20
Exact Mass
342.0173
SMILES
C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.Br
InChIKey
CMSYDJVRTHCWFP-UHFFFAOYSA-N
InChI
InChI=1S/C18H15P.BrH/c1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;/h1-15H;1H
PubChem CID
80811

Synonyms

  • C18H16BrP
  • Ph3P.HBr
  • Phosphine, triphenyl-, hydrobromide
  • Triphenylphosphane--hydrogen bromide (1/1)
  • triphenylphosphane;hydrobromide
  • triphenylphosphine bromine
  • Triphenylphosphine compd. with Hydrobromic Acid; Triphenylphosphonium bromide
  • Triphenylphosphine hydrobromide
  • UNAPPFZUZWMOPV-UHFFFAOYSA-N

Frequently asked questions

What is triphenylphosphonium bromide used for?

It is commonly used as a mild Brønsted acid catalyst and in the synthesis of phosphonium salts for organic reactions.

What is the chemical formula and molecular weight?

The formula is C18H16BrP with a molecular weight of 343.20 g/mol.

How should triphenylphosphonium bromide be stored?

It should be stored at ambient temperature, protected from moisture and light.

What grade is available?

Available in reagent grade; custom grades may be available upon request.

Can Molekula supply it in bulk?

Yes, bulk quantities are available—please contact our sales team for pricing and availability.

What documentation comes with the order?

Each order includes a Certificate of Analysis (CoA); additional documents like SDS can be provided upon request.

Related products

Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.

Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket